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Guidelines on sustainable livelihood of small-scale fishing communities: A case study of the central gulf of Thailand 全文
2018
Pinkaew Tongkamnherd(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) E-mail:pinkaew_737@hotmail.com | Jirarpast Adjimangkunl(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Sansanee Wangvoralak(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Urairathr Nedtharnn(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Monissa Srisomwong(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management)
Media channels of coastal communities in Prachuap Khiri Khan province 全文
2018
Nattha Soichumpa(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Urairathr Nedtharnn(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Jirarpast Adjinamgkunl(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Sansanee Wangvoralak(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management)
Opinions of operators on traceability systems of Thailand's fishmeal industry 全文
2018
Jeeratorn Yuttharax(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Sansanee Wangvoralak(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Urairathr Nedtharnn(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management) | Jirarpast Adjinamgkunl(Kasetsart University, Bangkok (Thailand). Faculty of Fisheries. Department of Fisheries Management)
Colaboración para la creación de resiliencia: una guía para profesionales 全文
2018
b.d. ratner | w.e. smith
B.D. Ratner, W.E. Smith, 'Colaboración para la creación de resiliencia: una guía para profesionales', Manual. Collaborating for Resilience.(Mariana Cristellys, trad.), WorldFish, 2018 | Colaborating for Resilience tiene como objetivo catalizar el cambio institucional a fin de abordar desafíos comunes en la gestión de los recursos naturales. En este manual se presenta un método para organizar el diálogo,emprender acciones conjuntas y mantener la colaboración
显示更多 [+] 显示较少 [-]Inland fish stock assessment: Applying data‐poor methods from marine systems 全文
2018
Fitzgerald, Colm J. | Delanty, Karen | Shephard, Samuel
Inland fisheries can be diverse, local and highly seasonal. This complexity creates challenges for monitoring, and consequently, many inland fish stocks have few data and cannot be assessed using methods typically applied to industrial marine fisheries. In such situations, there may be a role for methods recently developed for assessment of data‐poor fish stocks. Herein, three established data‐poor assessment tools from marine systems are demonstrated to highlight their value to inland fisheries management. A case study application uses archived length, catch and catch‐per‐unit‐effort data to characterise the ecological status of an important recreational brown trout stock in an Irish lake. This case study is of specific use to management of freshwater sport fisheries, but the broader purpose of the paper was to provide a crossover between marine and inland fisheries science, and to highlight accessible data‐poor assessment approaches that may be applicable in diverse inland systems.
显示更多 [+] 显示较少 [-]Using the same fish with different rules: A science‐based approach for improving management of recreational fisheries in a biodiversity hotspot of the Western South Atlantic 全文
2018
Garrone‐Neto, Domingos | Sanches, Eduardo Antonio | Daros, Felippe Alexandre Lisboa de Miranda | Imanobu, Cleber Mikio Rosa | Moro, Pietro Simon
In this study we tested the hypothesis that Centropomus parallelus Poey moves between areas where fishing tourism is important, but the management rules for recreational fisheries are different. Fieldwork was conducted from May 2014 to June 2017 in an estuary located in the border between the states of São Paulo and Paraná, South‐Southeastern Brazil. Through a mark and recapture experiment, 2.000 individuals were tagged, of which 42 were recaptured. Among these, six fish were recaptured in Paraná, after being tagged in São Paulo, and a fish was recaptured in São Paulo, after being tagged in Paraná. These results support the hypothesis tested and indicate an uneven use of C. parallelus by anglers in both states. Thus, the use of the species and the recreational fisheries regulations need to be reviewed in the study area, taking into account the ability of C. parallelus to move across political boundaries and the importance of a fish‐oriented fisheries management regime.
显示更多 [+] 显示较少 [-]Assessing the sensitivity of data-limited methods (DLMs) to the estimation of life-history parameters from length–frequency data 全文
2018
Sun, Ming | Zhang, Chongliang | Chen, Yong | Xu, Binduo | Xue, Ying | Ren, Yiping
Data-limited methods (DLMs) in stock assessment may provide potential critical information for data-limited stock management. However, the sensitivity of those methods to life-history parameters is largely unknown, resulting in extra uncertainty and consequent risks. In the present study, we designed six parallel workflows (WFs) to incorporate classic and state-of-the-art methods of estimating life-history parameters and examined their influences on the assessment of small yellow croaker (Larimichthys polyactis) in Haizhou Bay, China. The sensitivity was evaluated with three objectives: (i) the evaluation of stock status with the spawning potential ratio following different assumptions; (ii) the length-based harvest control rules derived from three management procedures; and (iii) the management performance of these harvest control rules with simulation of management strategy evaluation. The results showed considerable sensitivity regarding the three objectives to the estimations with different WFs, indicating the previous practice of credulously accepting empirical values and indiscriminately selecting references are inadvisable. We also identified the most appropriate WFs used for different purposes with limited data, aiming to provide more reliable inputs for effective fisheries management.
显示更多 [+] 显示较少 [-]Do recreational fisheries metrics vary on differently sized fishing grounds? 全文
2018
Lyach, Roman | Čech, Martin
This study aimed to assess the relationship between basic metrics in recreational fishing and the size of the fishing ground. Data were obtained from individual angling logbooks collected by the Czech Fishing Union over 12 years on 212 fishing grounds located in the regions of Prague and Central Bohemia in the Czech Republic. Small fishing grounds had the highest catch, yield, numbers of fishing visits and numbers of angling guard controls per hectare. Medium‐sized fishing grounds had the highest catch, yield, and numbers of both fishing visits and angling guard controls per fishing ground. Anglers returned to medium‐sized fishing grounds most frequently. The percentage of anglers who caught and took home at least one fish decreased with increasing size of the fishing ground. In conclusion, basic metrics in recreational fishing are related to the size of the fishing ground, which thus plays an important role in fisheries management.
显示更多 [+] 显示较少 [-]Empowering high seas governance with satellite vessel tracking data 全文
2018
Dunn, Daniel C | Jablonicky, Caroline | Crespo, Guillermo O | McCauley, Douglas J. | Kroodsma, David A | Boerder, Kristina | Gjerde, Kristina M. | Halpin, Patrick N
Between 1950 and 1989, marine fisheries catch in the open‐ocean and deep‐sea beyond 200 nautical miles from shore increased by a factor of more than 10. While high seas catches have since plateaued, fishing effort continues to increase linearly. The combination of increasing effort and illegal, unreported and unregulated (IUU) fishing has led to overfishing of target stocks and declines in biodiversity. To improve management, there have been numerous calls to increase monitoring, control and surveillance (MCS). However, MCS has been unevenly implemented, undermining efforts to sustainably use high seas and straddling stocks and protect associated species and ecosystems. The United Nations General Assembly is currently negotiating a new international treaty for the conservation and sustainable use of biodiversity beyond national jurisdiction (BBNJ). The new treaty offers an excellent opportunity to address discrepancies in how MCS is applied across regional fisheries management organizations (RFMOs). This paper identifies ways that automatic identification system (AIS) data can inform MCS on the high seas and thereby enhance conservation and management of biodiversity beyond national jurisdictions. AIS data can be used to (i) identify gaps in governance to underpin the importance of a holistic scope for the new agreement; (ii) monitor area‐based management tools; and (iii) increase the capacity of countries and RFMOs to manage via the technology transfer. Any new BBNJ treaty should emphasize MCS and the role of electronic monitoring including the use of AIS data, as well as government–industry–civil society partnerships to ensure critically important technology transfer and capacity building.
显示更多 [+] 显示较少 [-]System-level optimal yield: increased value, less risk, improved stability, and better fisheries 全文
2018
Link, Jason S.
The discipline and practice of fisheries science and management have had an useful, successful, and interesting history. The discipline has developed over the past century and a half into a very reductionist, highly quantitative, socially impactful endeavor. Yet given our collective successes in this field, some notable challenges remain. To address these challenges, many have proposed ecosystem-based fisheries management that takes a more systematic approach to the management of these living marine resources. Here I describe systems theory and associated constructs underlying system dynamics, elucidate how aggregate properties of systems can and have been used, contextualize these aggregate features relative to optimal yield, and note how this approach can produce useful estimates and outcomes for fisheries management. I explore two contrasting examples where this approach has and has not been considered, highlighting the benefits of applying such an approach. I conclude by discussing ways in which we might move forward with a portfolio approach for both the discipline and practice of fisheries science and management.
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